Pruning saw



Patented Aug. 9, 1927.

N ED GUILLERMO r. senro'vo, or SANTArAULA, oa mronnm.

- resume sAw."

7 Application filed December 21, 1925. 'seria1'no.7e,s5o. f

This invention relates to improvements in 10 bility of cutting ortearing the clothing or flesh of such user, as well as rendering thedevice more compact ;non-usage." I y Itis an equally important object ofthe during the period of l invention to provide a handle of the charac-;ter mentioned so constructed as to provide a vhand grlp portion forthe. saw attached thereto in order that the same may be'efficientlyiused while another and elongated ortion of the handle isextended and, is,

- adapted to afford asheathing means'for the .saw'toothed edge; 1

Another novel characteristic of the invention may be stated to reside inthe'provision of means for rigidly securingthe pruning saw proper in itsextended or operative posi- I, tion with respect to the handle therefor,such f means being'of-a construction whereby they I p p zone end of asaw 3 therein such pruning may be quickly and readily engaged with anit. in its extended or operative I position and .yet, when desired, maybe disengaged from the saw proper with equal ease and facility in orderthatsuchsawmay beswung to its the handle. a, p vv;

a Otherobjects of the invention will be in part obvious and in partpointed out herein after. v

of-operation may be readily understoodby @persons skilledintheart I havein the a c 7V companying illustrative drawings, and 1n the detailedfollowing description based thereon, set outone possible embodiment ofthesame. I v In these drawings: 1 1 1 Figure 1; is a sideelevation oftheim- 7 proved pruning A pp 7 saw proper is shown in foldedi or closedposition,

i Figure 2is a similar] view -wherein the I saw proper is in extended oroperativeposi- .tion, I r

Figure 3 is an enlarged fragmentary dea tail in sectiontakenontheline-3-3 ofFig conveniently carried in the pocket of a user,w1thouthaadjacent portion of thesaw proper to lock closed or; sheathedpositionwith respect to:

In order that the invention and its mode p saw and handle, wherein theure 2, showing the novel form of'locking .mcans for retainingthesawproperin its ex tended or. operative position with respect to the,handle therefor, and

Figure 4' is a transverse detail in section taken'on the lineH ofFigurelylooking I inltlie direction in which the arrowspo nt,

illustrating. the manner in whichflthe sawnumeral 1; said body portionbeirigcontoothed edge is received and sheathed inastructed' of wood,metal. fibre or other suit able. composition or material, such asconditions for preference may dictate, 'one portion 1 ofsaid handlebeing laterally offset and vwhercbv tofper'init of the arrangement ofsaw being provided, with an openingin the adjacent orreceived endthereof in; order},

Jthat apivot bolt 4 may": be passed through" a'correspondingly formedopening in said 1 free:.e nd of the-hand grip "2 through the opening in'the'sawand then locked upon 7 the reverse sideof the. hand grip.whereby ,to prevent accidental or undue disengagement of the same fromthe saw. 'In this way it is obvious that the pruning saw 3 will beivotally; connected to the splitfree endof'" the han d grip 2 of thehandle and by'consecurved upon itself whereby tovprovide the handle witha highly; efficient and desirable fform-offhand grip 2; the outer. orfree eXe ;tremityof this offset or hand grip 2 being slit :throughoutitslength asis clearly in'di cat'ed in Figures 1 and 2 by dotted lines,

quence, that the same may be swung to one of thei severalpositions,rthat' is, to an'open oroperative position as shown in theFigure '2 and seconchto a closed or 1noperat1ve pos1-' tionas is shownin the Figure 1, this latter position of the saw being such that the 1ii; 'With a view' 1mm providing the pra pivotallyconnected end 7'thereof and vwith toothed edge thereof sheathed in another portion ofthehandle which will be presently v described.

:sw'in gingof such saw to its operative'posi f engagement of said 1frusto-oonical extension "tion'asshown in the Figure 2, t he-straightedge formed end thereof will abut the correspondingly formed shouldersupon the split free end ofthehand grip'2awhereupon Said opening 5 willbe aligned with a correspondingly formed'opening in one portion of saidsplit end of the hand grlp,

An elongated casing 6"is inset "in one side 'Of the outer portion of thehand grip 2, dis- 7 l posed longitudinally thereof as clearly indicatedinithe' Figure 1, the opposite ends of this housing being circularlyenlarged 3S' indicated at 7, while a tapering. opening isaformed in the,inner end of the outermost jenlarged end '7 as is shown in the Figure 3.it'locl'ting bolt 8 consisting of a body por- -tion carrying circularlyenlarged extremities 9 and 10, isniountedinthe casing 6,

which as willbe noted, opens onto one side of. the hand grip 2 andthislocking bolt is pivoted transversely of itself as indicated at 11, theopposite ends, of' course, being journaled in suitable bearings formedthere- 'fo-r'in adij acentportions of the opposite side walls of thecasing 6. 'Theenlarged portion 10 constitutes the bolt proper of thelocking 7 bolt, oneend'thereof being extended and formed with asubstantially frusto-conical portion "12 adapted to be passed throughthe opening formed in. the bottom of theoutermost enlarged end. 7 of thecasingv 6 and into snug engageinent "with the opening 5 in e j theadjacent portion of the pruning saw 3,

it"being noted in this connection, that said opening 5" is tapered tocorrespond withthe tapered peripheralportions of the extension '12. Inthis way,'snug engagement of the i extension 12 in theopening 5 will beat all v tinies insured and by consequence, the handfle 3, will herigidly locked in its open position and" furthermore, will be preventederati-on. The circularlyenlarged end 9 of the locking bolt 8' is snuglyreceived in the casing 6' and is; retained in av normallyexftended,positionwith respect to said end of the casing 6 through themedium of an exhpansible coil spring 13, one end. of whichhasbearingupon the bottom of said oircu-,

Iarly enlarged end 7 while theopposite end "there'ofshas bearingupon theunder. side of said portion 9. In this way, it will be uniderstood' thatthe frusto-conical extension 12 V uponthe enlarged end 10, will benormally 3 retained initsfinnermostor engagediposi tion "as respects thecircularly enlarged end 7jof the casing 6 receivingit. I-Ience, with 12in the openingf5 of the pruning saw 3,

accidental or undue disengagernent of the same with said saw' will bepositively prevented,"and furthermore, because of"the' tapering interfitas between the" sides of. the

rne'nt-"witli'the adjacent edge opening 5* and the sidesof the extension12, such locking connection will be positive and Inorder that the sawtoothed edge of the saw 3 may be effectually shea'ted by the improvedhandle with swinging of the same to that position as shown in the Figure1, a

of a character to lend rigidity to, the pruning-sawfi, withrespec-ttothe hand grlp 2.

portion of said handle is elongated or rather, is longitudinally.extended as is indicated by the numeral 14, oneside of this elongated orlongitudinally extended portionIl't being formed with a longitudinallydisposed sheathing groove 15,'the outer end of which is curvedflupwardlyandclosed as indicated in the Figures land 2 while the inner end thereofopens onto the adja cent portion of the hand grip 21"This sheathinggroove fore, with release of the locking bolt 8- from said saw, the samemay be readily-swung inwardly with respect to, the handle and the sawtoothv edge thereof sheathed or engaged in thegroove 15''; When 'in thissheathed 15 is longitudinally I: V

aligned with the, pruningsawB and there- 1' 1 and folded position,"- itwill be understood that the pruning saw will be rendered much example,in thepocket of a user without liability of cutting the clothing'orflesh ad.

3' acent" thereto;

1nore compact and likewise, that the same I Y *may be convenientlycarried by a user for fit is likewise of importance to notethatwith-arrangement of the pruning saw 3 'in folded or inoperative positionasis shown in the Figure 1, the iru'sto conicalextension12 upon theenlarged end 10 will have bearing upon an adjacent edge of the pruningsaw 3 as illustrated in dotted lines in Figure [1. By, consequence, itwillhe appreciated that p the pruning saw 3 willfbe firmly retained inits closed position'with respect to'the extenmay' be swu ng to an openposition lnerely by depressing enlarged end 9 of the;- locking bolt 8against the tension of the coil spring we i' sio-n '14, although-whendesired, the, same 13 and retracting the frusto-conic'al'exten- V 1 sion12 from. said edge of the pruning saw designatedby the numeral 16,allowing the saw to befreely swung to anopenposition. It of course willbe understood, that with swinging of the pruning saw 'anom a closed toan open position with" respect to the han-i dle 1 therefor,theYfruIsto-conical extension 12 'is moved to its outermost position bydepressing the enlargedj end 9 of the looking bolt 8, in them-anner asabovedescribed, thus withdrawingthe extension 12 from e'nga'ge- I I 16ofsaidprun 111g saw 3 and permitting the sametobe swung to'lts operat veor open" position.

When this operative and open "position has been attained, in the manneras illustratedin the F1gure2, the opening 5 in, the pruning saw 3' willjbe aligned with the opening 1 2 vention.

formedin the outermost circularly enlarged I end 7 of the casing 6,whereupon the frustoconical portion 120i the enlarged end 10 Will beimmediately engaged in said opening under urge of the expansible coilspring 18 engaging with the under side of the opposite i the two duringusage of such pruning saw.

Manifestly, the construction shown is capable of considerablemodification, and such modification as is within the scope of my claim,I consider within the spirit of myin- I claim:

A prumng saw comprising a handlehav- I ingaa longitudinally extendinggroove, a pivot bolt mounted therein, a blade supported by 7 I a saidbolt for swinging movements toward and away from said groove, and havinga taperingopening'to one side of said bolt and 'I an inclined edge tothe opposite side of the 1 bolt, a casing embedded in the handle havinga tapering opening arranged to align with said first opening and a boltpivotally mounted within said housing and having a tapering extendingportion adapted to have a wedging action with saidtapering opening inthe extended position of the blade and in abutting relation with saidinclined edge when the blade engageswithin said groove.

In witness whereof I have hereunto set'my hand. i a a GUILLERMO F.SANTOYO.

